Which of the following statements about th4gl2da/9v(,swvop x re effect of surface area and volume on the cell’s proce 2(94rxa dgw,/volp svsses is false?

  Which statement best describes ty3 d 6r7/;x lat/efgostem cells?

  Which is a correct dz9 pfrklr 5xy)y 6(qog,q3j xna/7f.wescription of the cell type adapted for gas exchange in the ./j3qygf5f7qx ya6 ok,rn)(lrzpw9x lungs?

  Which of the following explains the limitations on cell size?t8wio z1g r*j5

  What is this cell's most likelyc*.km y5 agye3 primary function, and where could it be located in a mamma ya. yg*m5c3ekl?

  Which of the following characteristics of type I pneumocytes contribute to incregjux 8jch4xbjg;: l* 6asing the rate of gas excglc 8*jx: uhxj4gbj ;6hange?
I.
Cells are flattened
II.
Secretion of a surfactant
III.
Cover less than 10% of the alveolar surface

  A patient receives a bone marrow transplantf/m ;ql p(skt) from a 36 year old. One of the functions of these cells is to produce red and white blood cells. Wh;)psk/f tq( lmat type of stem cells has the patient received?

  Based on the Venn diagram, which identifies cardiac muscle cells and/;b q(9n stlha 9iuy8u striated muscle finy8u;bt h9/ql9(isuabres?

Below is a diagram of a motor neuron. Neuzwl5*-da4jb frons are the longest cells in the human bo-dal5 f*b4wz jdy.
1.Explain the factors that limit cell size in humans.
2.Explain how life functions are performed by Paramecium.

Premature babies sometimes suffer from infant respiratory distress syndrflv79k 0k apvm0qh0:p1 afu +mome, which could be caused by a lack of sufficient surfactant in the pulmonary alveoli. The diagramp0h 0a ua7vm1 lkfpvmf+qk9 :0 below shows two different alveoli structures.


1.Describe one feature of the surfactant.

2.Suggest a treatment for infant respiratory distress syndrome.

3.Draw a labelled diagram of the structures in an alveolus that are important for gas exchange.

  Which of the following is a reason that embryonic stcwg3btv f; q8 ebzr6- z:l5sj,em cells are not used in theqj-;c5b,gr8lbz stzf6 3w :ve treatment of leukaemia?

  The table shows the diameters of red blood cells fh,p0skab p*j 6rom different organisms. Which rejsh0 b ,6ap*kpd blood cell will have the highest surface area to volume ratio?

1.Explain how the shape of erythrocytes and cells lining th b8yspolu( *akrz )tb 21cscz ya;6b/.e proximal convoluted tubule make these ce( b1b)ac/ c .olyzs pbuz6 82;rksya*tlls more adapted to the functions they perform.

2.Compare and contrast the structure of striated muscle cells and cardiac muscle fibres.

3.Explain how the structure of egg and sperm cells are adapted to their functions.

  Which statements about em, /r/plw u-yr/ir9xd jbryonic stem cells and specialised cells is/are not trurpxu r-rjw,ld/ i /y/9e?

I. Embryonic stem cells have higher levels of DNA methylation than differentiated cells
II. Specialised cells are more differentiated than embryonic stem cells
III. Most specialised cells and embryonic stem cells both contain the entire genome of an organism

  In humans, which of the following is the correct ord /q / *a ur(g/4yvd71qtppjfjuer from smallest to largest? /rjg/(yqvqp4 juuft17 /*adp

  Which row in the following table gi 64*w*t7adxv)s/j fqvczpfu(g h,j- q ves the correct disadvantages of the different stem cell s-q* shgf6q*zp/ 7 x,j(ua) fcvvtw4jdources for therapeutic uses?

1.Describe how the use of stem cell4e/7a om6ba/*h 2ea bfklia2 ls may be used to treat type I diabetes in the future/2b42h 6 e*a/abofli7alamk e.

2.Explain the factors that limit cell size in humans.

3.Explain how red blood cells and striated muscle fibres are adapted to their function.

Below are diagrams of specialised cells (not to s9rr,;eqzoe2 3gnv 39 sg*dduzcale).

1.Put these cells in order of size, from the smallest to the largest.

2.Compare and contrast totipotent, pluripotent and multipotent stem cells.